#include<bits/stdc++.h>
#define mpr make_pair
#define sz(x) (int)(x.size())
using namespace std;
const int inf=2e9;
const int MAXN=200005;
int n;
int mx;
int cnt[MAXN];
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++){
        int ai;
        cin>>ai;
        cnt[ai]++;
    }
    for(int i=1;i<=200000;i++){
        mx=max(mx,cnt[i]);
    }
    cout<<mx<<endl;
    return 0;
}